Electric kettle



FIG. 1 is a perspective view of an electric kettle showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawing views are included for the purpose of illustrating unclaimed environment only, and forms no part of the claimed design. 

CLAIM The ornamental design for an electric kettle, as shown and described. 